Cloud FAQs: Answers to Common Questions

a) Is Proxmox Backup an incremental backup, a repeated backup, or a full backup ?

Proxmox Backup Server uses incremental backups to deduplicate data, minimizing storage consumption and network impact while still referencing all data as a full backup.

b) When backing up to a Proxmox remote server, do I have to trust the remote server ? 

The Proxmox backup server uses Transport Layer Security (TLS) and client-side encryption to securely transmit data, ensuring that it is encrypted before reaching the server and preventing an attacker from accessing the server or any network point.

c) Can Proxmox Backup Server verify the data integrity of backup archives ?

The Proxmox Backup Server employs the SHA-256 checksum algorithm for data integrity, creating a manifest file (index.json) for each backup, which includes a list of backup files, sizes, and checksums, to verify their integrity.

d) Can I copy or sync my data storage to another location ?

Proxmox Backup Server enables data storage copying or synchronization to other locations through remote controls and sync jobs. Remote refers to a separate server with a data store that can be synced to local storage, while a synchronization job pulls the content from a remote to local storage.

e) Can the Proxmox backup server run on 32-bit processors ?

The Proxmox backup server is exclusively designed for 64-bit CPUs (AMD or Intel) and has no plans to support 32-bit processors in the future.

f) Which platforms are supported as backup sources (clients) ?

The client tool is compatible with most modern Linux systems, ensuring that backups are not limited to Debian-based systems.